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5191 | serge | 1 | /* Function declarations for libiberty. |
2 | |||
3 | Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
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4 | 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
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5 | |||
6 | Note - certain prototypes declared in this header file are for |
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7 | functions whoes implementation copyright does not belong to the |
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8 | FSF. Those prototypes are present in this file for reference |
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9 | purposes only and their presence in this file should not construed |
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10 | as an indication of ownership by the FSF of the implementation of |
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11 | those functions in any way or form whatsoever. |
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12 | |||
13 | This program is free software; you can redistribute it and/or modify |
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14 | it under the terms of the GNU General Public License as published by |
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15 | the Free Software Foundation; either version 2, or (at your option) |
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16 | any later version. |
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17 | |||
18 | This program is distributed in the hope that it will be useful, |
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19 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 | GNU General Public License for more details. |
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22 | |||
23 | You should have received a copy of the GNU General Public License |
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24 | along with this program; if not, write to the Free Software |
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25 | Foundation, Inc., 51 Franklin Street - Fifth Floor, |
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26 | Boston, MA 02110-1301, USA. |
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27 | |||
28 | Written by Cygnus Support, 1994. |
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29 | |||
30 | The libiberty library provides a number of functions which are |
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31 | missing on some operating systems. We do not declare those here, |
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32 | to avoid conflicts with the system header files on operating |
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33 | systems that do support those functions. In this file we only |
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34 | declare those functions which are specific to libiberty. */ |
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35 | |||
36 | #ifndef LIBIBERTY_H |
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37 | #define LIBIBERTY_H |
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38 | |||
39 | #ifdef __cplusplus |
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40 | extern "C" { |
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41 | #endif |
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42 | |||
43 | #include "ansidecl.h" |
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44 | |||
45 | /* Get a definition for size_t. */ |
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46 | #include |
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47 | /* Get a definition for va_list. */ |
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48 | #include |
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49 | |||
50 | #include |
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51 | |||
52 | /* If the OS supports it, ensure that the supplied stream is setup to |
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53 | avoid any multi-threaded locking. Otherwise leave the FILE pointer |
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54 | unchanged. If the stream is NULL do nothing. */ |
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55 | |||
56 | extern void unlock_stream (FILE *); |
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57 | |||
58 | /* If the OS supports it, ensure that the standard I/O streams, stdin, |
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59 | stdout and stderr are setup to avoid any multi-threaded locking. |
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60 | Otherwise do nothing. */ |
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61 | |||
62 | extern void unlock_std_streams (void); |
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63 | |||
64 | /* Open and return a FILE pointer. If the OS supports it, ensure that |
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65 | the stream is setup to avoid any multi-threaded locking. Otherwise |
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66 | return the FILE pointer unchanged. */ |
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67 | |||
68 | extern FILE *fopen_unlocked (const char *, const char *); |
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69 | extern FILE *fdopen_unlocked (int, const char *); |
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70 | extern FILE *freopen_unlocked (const char *, const char *, FILE *); |
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71 | |||
72 | /* Build an argument vector from a string. Allocates memory using |
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73 | malloc. Use freeargv to free the vector. */ |
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74 | |||
75 | extern char **buildargv (const char *) ATTRIBUTE_MALLOC; |
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76 | |||
77 | /* Free a vector returned by buildargv. */ |
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78 | |||
79 | extern void freeargv (char **); |
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80 | |||
81 | /* Duplicate an argument vector. Allocates memory using malloc. Use |
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82 | freeargv to free the vector. */ |
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83 | |||
84 | extern char **dupargv (char **) ATTRIBUTE_MALLOC; |
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85 | |||
86 | /* Expand "@file" arguments in argv. */ |
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87 | |||
88 | extern void expandargv PARAMS ((int *, char ***)); |
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89 | |||
90 | /* Write argv to an @-file, inserting necessary quoting. */ |
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91 | |||
92 | extern int writeargv PARAMS ((char **, FILE *)); |
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93 | |||
94 | /* Return the number of elements in argv. */ |
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95 | |||
96 | extern int countargv (char**); |
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97 | |||
98 | /* Return the last component of a path name. Note that we can't use a |
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99 | prototype here because the parameter is declared inconsistently |
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100 | across different systems, sometimes as "char *" and sometimes as |
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101 | "const char *" */ |
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102 | |||
103 | /* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is |
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104 | undefined, we haven't run the autoconf check so provide the |
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105 | declaration without arguments. If it is 0, we checked and failed |
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106 | to find the declaration so provide a fully prototyped one. If it |
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107 | is 1, we found it so don't provide any declaration at all. */ |
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108 | #if !HAVE_DECL_BASENAME |
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109 | #if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined(__NetBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) || defined (HAVE_DECL_BASENAME) |
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110 | extern char *basename (const char *); |
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111 | #else |
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112 | /* Do not allow basename to be used if there is no prototype seen. We |
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113 | either need to use the above prototype or have one from |
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114 | autoconf which would result in HAVE_DECL_BASENAME being set. */ |
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115 | #define basename basename_cannot_be_used_without_a_prototype |
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116 | #endif |
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117 | #endif |
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118 | |||
119 | /* A well-defined basename () that is always compiled in. */ |
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120 | |||
121 | extern const char *lbasename (const char *); |
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122 | |||
123 | /* Same, but assumes DOS semantics (drive name, backslash is also a |
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124 | dir separator) regardless of host. */ |
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125 | |||
126 | extern const char *dos_lbasename (const char *); |
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127 | |||
128 | /* Same, but assumes Unix semantics (absolute paths always start with |
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129 | a slash, only forward slash is accepted as dir separator) |
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130 | regardless of host. */ |
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131 | |||
132 | extern const char *unix_lbasename (const char *); |
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133 | |||
134 | /* A well-defined realpath () that is always compiled in. */ |
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135 | |||
136 | extern char *lrealpath (const char *); |
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137 | |||
138 | /* Concatenate an arbitrary number of strings. You must pass NULL as |
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139 | the last argument of this function, to terminate the list of |
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140 | strings. Allocates memory using xmalloc. */ |
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141 | |||
142 | extern char *concat (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; |
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143 | |||
144 | /* Concatenate an arbitrary number of strings. You must pass NULL as |
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145 | the last argument of this function, to terminate the list of |
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146 | strings. Allocates memory using xmalloc. The first argument is |
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147 | not one of the strings to be concatenated, but if not NULL is a |
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148 | pointer to be freed after the new string is created, similar to the |
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149 | way xrealloc works. */ |
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150 | |||
151 | extern char *reconcat (char *, const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; |
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152 | |||
153 | /* Determine the length of concatenating an arbitrary number of |
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154 | strings. You must pass NULL as the last argument of this function, |
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155 | to terminate the list of strings. */ |
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156 | |||
157 | extern unsigned long concat_length (const char *, ...) ATTRIBUTE_SENTINEL; |
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158 | |||
159 | /* Concatenate an arbitrary number of strings into a SUPPLIED area of |
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160 | memory. You must pass NULL as the last argument of this function, |
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161 | to terminate the list of strings. The supplied memory is assumed |
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162 | to be large enough. */ |
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163 | |||
164 | extern char *concat_copy (char *, const char *, ...) ATTRIBUTE_SENTINEL; |
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165 | |||
166 | /* Concatenate an arbitrary number of strings into a GLOBAL area of |
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167 | memory. You must pass NULL as the last argument of this function, |
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168 | to terminate the list of strings. The supplied memory is assumed |
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169 | to be large enough. */ |
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170 | |||
171 | extern char *concat_copy2 (const char *, ...) ATTRIBUTE_SENTINEL; |
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172 | |||
173 | /* This is the global area used by concat_copy2. */ |
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174 | |||
175 | extern char *libiberty_concat_ptr; |
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176 | |||
177 | /* Concatenate an arbitrary number of strings. You must pass NULL as |
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178 | the last argument of this function, to terminate the list of |
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179 | strings. Allocates memory using alloca. The arguments are |
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180 | evaluated twice! */ |
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181 | #define ACONCAT(ACONCAT_PARAMS) \ |
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182 | (libiberty_concat_ptr = (char *) alloca (concat_length ACONCAT_PARAMS + 1), \ |
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183 | concat_copy2 ACONCAT_PARAMS) |
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184 | |||
185 | /* Check whether two file descriptors refer to the same file. */ |
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186 | |||
187 | extern int fdmatch (int fd1, int fd2); |
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188 | |||
189 | /* Return the position of the first bit set in the argument. */ |
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190 | /* Prototypes vary from system to system, so we only provide a |
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191 | prototype on systems where we know that we need it. */ |
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192 | #if defined (HAVE_DECL_FFS) && !HAVE_DECL_FFS |
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193 | extern int ffs(int); |
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194 | #endif |
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195 | |||
196 | /* Get the working directory. The result is cached, so don't call |
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197 | chdir() between calls to getpwd(). */ |
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198 | |||
199 | extern char * getpwd (void); |
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200 | |||
201 | /* Get the current time. */ |
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202 | /* Prototypes vary from system to system, so we only provide a |
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203 | prototype on systems where we know that we need it. */ |
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204 | #ifdef __MINGW32__ |
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205 | /* Forward declaration to avoid #include |
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206 | struct timeval; |
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207 | extern int gettimeofday (struct timeval *, void *); |
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208 | #endif |
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209 | |||
210 | /* Get the amount of time the process has run, in microseconds. */ |
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211 | |||
212 | extern long get_run_time (void); |
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213 | |||
214 | /* Generate a relocated path to some installation directory. Allocates |
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215 | return value using malloc. */ |
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216 | |||
217 | extern char *make_relative_prefix (const char *, const char *, |
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218 | const char *) ATTRIBUTE_MALLOC; |
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219 | |||
220 | /* Generate a relocated path to some installation directory without |
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221 | attempting to follow any soft links. Allocates |
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222 | return value using malloc. */ |
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223 | |||
224 | extern char *make_relative_prefix_ignore_links (const char *, const char *, |
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225 | const char *) ATTRIBUTE_MALLOC; |
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226 | |||
227 | /* Choose a temporary directory to use for scratch files. */ |
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228 | |||
229 | extern char *choose_temp_base (void) ATTRIBUTE_MALLOC; |
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230 | |||
231 | /* Return a temporary file name or NULL if unable to create one. */ |
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232 | |||
233 | extern char *make_temp_file (const char *) ATTRIBUTE_MALLOC; |
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234 | |||
235 | /* Remove a link to a file unless it is special. */ |
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236 | |||
237 | extern int unlink_if_ordinary (const char *); |
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238 | |||
239 | /* Allocate memory filled with spaces. Allocates using malloc. */ |
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240 | |||
241 | extern const char *spaces (int count); |
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242 | |||
243 | /* Return the maximum error number for which strerror will return a |
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244 | string. */ |
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245 | |||
246 | extern int errno_max (void); |
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247 | |||
248 | /* Return the name of an errno value (e.g., strerrno (EINVAL) returns |
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249 | "EINVAL"). */ |
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250 | |||
251 | extern const char *strerrno (int); |
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252 | |||
253 | /* Given the name of an errno value, return the value. */ |
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254 | |||
255 | extern int strtoerrno (const char *); |
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256 | |||
257 | /* ANSI's strerror(), but more robust. */ |
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258 | |||
259 | extern char *xstrerror (int); |
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260 | |||
261 | /* Return the maximum signal number for which strsignal will return a |
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262 | string. */ |
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263 | |||
264 | extern int signo_max (void); |
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265 | |||
266 | /* Return a signal message string for a signal number |
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267 | (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ |
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268 | /* This is commented out as it can conflict with one in system headers. |
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269 | We still document its existence though. */ |
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270 | |||
271 | /*extern const char *strsignal (int);*/ |
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272 | |||
273 | /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns |
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274 | "SIGHUP"). */ |
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275 | |||
276 | extern const char *strsigno (int); |
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277 | |||
278 | /* Given the name of a signal, return its number. */ |
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279 | |||
280 | extern int strtosigno (const char *); |
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281 | |||
282 | /* Register a function to be run by xexit. Returns 0 on success. */ |
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283 | |||
284 | extern int xatexit (void (*fn) (void)); |
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285 | |||
286 | /* Exit, calling all the functions registered with xatexit. */ |
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287 | |||
288 | extern void xexit (int status) ATTRIBUTE_NORETURN; |
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289 | |||
290 | /* Set the program name used by xmalloc. */ |
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291 | |||
292 | extern void xmalloc_set_program_name (const char *); |
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293 | |||
294 | /* Report an allocation failure. */ |
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295 | extern void xmalloc_failed (size_t) ATTRIBUTE_NORETURN; |
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296 | |||
297 | /* Allocate memory without fail. If malloc fails, this will print a |
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298 | message to stderr (using the name set by xmalloc_set_program_name, |
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299 | if any) and then call xexit. */ |
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300 | |||
301 | extern void *xmalloc (size_t) ATTRIBUTE_MALLOC; |
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302 | |||
303 | /* Reallocate memory without fail. This works like xmalloc. Note, |
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304 | realloc type functions are not suitable for attribute malloc since |
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305 | they may return the same address across multiple calls. */ |
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306 | |||
307 | extern void *xrealloc (void *, size_t); |
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308 | |||
309 | /* Allocate memory without fail and set it to zero. This works like |
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310 | xmalloc. */ |
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311 | |||
312 | extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC; |
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313 | |||
314 | /* Copy a string into a memory buffer without fail. */ |
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315 | |||
316 | extern char *xstrdup (const char *) ATTRIBUTE_MALLOC; |
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317 | |||
318 | /* Copy at most N characters from string into a buffer without fail. */ |
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319 | |||
320 | extern char *xstrndup (const char *, size_t) ATTRIBUTE_MALLOC; |
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321 | |||
322 | /* Copy an existing memory buffer to a new memory buffer without fail. */ |
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323 | |||
324 | extern void *xmemdup (const void *, size_t, size_t) ATTRIBUTE_MALLOC; |
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325 | |||
326 | /* Physical memory routines. Return values are in BYTES. */ |
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327 | extern double physmem_total (void); |
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328 | extern double physmem_available (void); |
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329 | |||
330 | /* Compute the 32-bit CRC of a block of memory. */ |
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331 | extern unsigned int xcrc32 (const unsigned char *, int, unsigned int); |
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332 | |||
333 | /* These macros provide a K&R/C89/C++-friendly way of allocating structures |
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334 | with nice encapsulation. The XDELETE*() macros are technically |
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335 | superfluous, but provided here for symmetry. Using them consistently |
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336 | makes it easier to update client code to use different allocators such |
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337 | as new/delete and new[]/delete[]. */ |
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338 | |||
339 | /* Scalar allocators. */ |
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340 | |||
341 | #define XALLOCA(T) ((T *) alloca (sizeof (T))) |
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342 | #define XNEW(T) ((T *) xmalloc (sizeof (T))) |
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343 | #define XCNEW(T) ((T *) xcalloc (1, sizeof (T))) |
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344 | #define XDUP(T, P) ((T *) xmemdup ((P), sizeof (T), sizeof (T))) |
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345 | #define XDELETE(P) free ((void*) (P)) |
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346 | |||
347 | /* Array allocators. */ |
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348 | |||
349 | #define XALLOCAVEC(T, N) ((T *) alloca (sizeof (T) * (N))) |
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350 | #define XNEWVEC(T, N) ((T *) xmalloc (sizeof (T) * (N))) |
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351 | #define XCNEWVEC(T, N) ((T *) xcalloc ((N), sizeof (T))) |
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352 | #define XDUPVEC(T, P, N) ((T *) xmemdup ((P), sizeof (T) * (N), sizeof (T) * (N))) |
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353 | #define XRESIZEVEC(T, P, N) ((T *) xrealloc ((void *) (P), sizeof (T) * (N))) |
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354 | #define XDELETEVEC(P) free ((void*) (P)) |
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355 | |||
356 | /* Allocators for variable-sized structures and raw buffers. */ |
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357 | |||
358 | #define XALLOCAVAR(T, S) ((T *) alloca ((S))) |
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359 | #define XNEWVAR(T, S) ((T *) xmalloc ((S))) |
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360 | #define XCNEWVAR(T, S) ((T *) xcalloc (1, (S))) |
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361 | #define XDUPVAR(T, P, S1, S2) ((T *) xmemdup ((P), (S1), (S2))) |
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362 | #define XRESIZEVAR(T, P, S) ((T *) xrealloc ((P), (S))) |
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363 | |||
364 | /* Type-safe obstack allocator. */ |
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365 | |||
366 | #define XOBNEW(O, T) ((T *) obstack_alloc ((O), sizeof (T))) |
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367 | #define XOBNEWVEC(O, T, N) ((T *) obstack_alloc ((O), sizeof (T) * (N))) |
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368 | #define XOBNEWVAR(O, T, S) ((T *) obstack_alloc ((O), (S))) |
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369 | #define XOBFINISH(O, T) ((T) obstack_finish ((O))) |
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370 | |||
371 | /* hex character manipulation routines */ |
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372 | |||
373 | #define _hex_array_size 256 |
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374 | #define _hex_bad 99 |
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375 | extern const unsigned char _hex_value[_hex_array_size]; |
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376 | extern void hex_init (void); |
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377 | #define hex_p(c) (hex_value (c) != _hex_bad) |
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378 | /* If you change this, note well: Some code relies on side effects in |
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379 | the argument being performed exactly once. */ |
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380 | #define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)]) |
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381 | |||
382 | /* Flags for pex_init. These are bits to be or'ed together. */ |
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383 | |||
384 | /* Record subprocess times, if possible. */ |
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385 | #define PEX_RECORD_TIMES 0x1 |
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386 | |||
387 | /* Use pipes for communication between processes, if possible. */ |
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388 | #define PEX_USE_PIPES 0x2 |
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389 | |||
390 | /* Save files used for communication between processes. */ |
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391 | #define PEX_SAVE_TEMPS 0x4 |
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392 | |||
393 | /* Prepare to execute one or more programs, with standard output of |
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394 | each program fed to standard input of the next. |
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395 | FLAGS As above. |
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396 | PNAME The name of the program to report in error messages. |
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397 | TEMPBASE A base name to use for temporary files; may be NULL to |
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398 | use a random name. |
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399 | Returns NULL on error. */ |
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400 | |||
401 | extern struct pex_obj *pex_init (int flags, const char *pname, |
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402 | const char *tempbase); |
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403 | |||
404 | /* Flags for pex_run. These are bits to be or'ed together. */ |
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405 | |||
406 | /* Last program in pipeline. Standard output of program goes to |
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407 | OUTNAME, or, if OUTNAME is NULL, to standard output of caller. Do |
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408 | not set this if you want to call pex_read_output. After this is |
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409 | set, pex_run may no longer be called with the same struct |
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410 | pex_obj. */ |
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411 | #define PEX_LAST 0x1 |
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412 | |||
413 | /* Search for program in executable search path. */ |
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414 | #define PEX_SEARCH 0x2 |
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415 | |||
416 | /* OUTNAME is a suffix. */ |
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417 | #define PEX_SUFFIX 0x4 |
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418 | |||
419 | /* Send program's standard error to standard output. */ |
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420 | #define PEX_STDERR_TO_STDOUT 0x8 |
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421 | |||
422 | /* Input file should be opened in binary mode. This flag is ignored |
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423 | on Unix. */ |
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424 | #define PEX_BINARY_INPUT 0x10 |
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425 | |||
426 | /* Output file should be opened in binary mode. This flag is ignored |
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427 | on Unix. For proper behaviour PEX_BINARY_INPUT and |
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428 | PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using |
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429 | PEX_BINARY_OUTPUT should be followed by a call using |
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430 | PEX_BINARY_INPUT. */ |
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431 | #define PEX_BINARY_OUTPUT 0x20 |
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432 | |||
433 | /* Capture stderr to a pipe. The output can be read by |
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434 | calling pex_read_err and reading from the returned |
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435 | FILE object. This flag may be specified only for |
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436 | the last program in a pipeline. |
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437 | |||
438 | This flag is supported only on Unix and Windows. */ |
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439 | #define PEX_STDERR_TO_PIPE 0x40 |
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440 | |||
441 | /* Capture stderr in binary mode. This flag is ignored |
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442 | on Unix. */ |
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443 | #define PEX_BINARY_ERROR 0x80 |
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444 | |||
445 | |||
446 | /* Execute one program. Returns NULL on success. On error returns an |
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447 | error string (typically just the name of a system call); the error |
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448 | string is statically allocated. |
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449 | |||
450 | OBJ Returned by pex_init. |
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451 | |||
452 | FLAGS As above. |
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453 | |||
454 | EXECUTABLE The program to execute. |
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455 | |||
456 | ARGV NULL terminated array of arguments to pass to the program. |
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457 | |||
458 | OUTNAME Sets the output file name as follows: |
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459 | |||
460 | PEX_SUFFIX set (OUTNAME may not be NULL): |
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461 | TEMPBASE parameter to pex_init not NULL: |
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462 | Output file name is the concatenation of TEMPBASE |
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463 | and OUTNAME. |
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464 | TEMPBASE is NULL: |
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465 | Output file name is a random file name ending in |
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466 | OUTNAME. |
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467 | PEX_SUFFIX not set: |
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468 | OUTNAME not NULL: |
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469 | Output file name is OUTNAME. |
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470 | OUTNAME NULL, TEMPBASE not NULL: |
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471 | Output file name is randomly chosen using |
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472 | TEMPBASE. |
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473 | OUTNAME NULL, TEMPBASE NULL: |
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474 | Output file name is randomly chosen. |
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475 | |||
476 | If PEX_LAST is not set, the output file name is the |
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477 | name to use for a temporary file holding stdout, if |
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478 | any (there will not be a file if PEX_USE_PIPES is set |
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479 | and the system supports pipes). If a file is used, it |
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480 | will be removed when no longer needed unless |
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481 | PEX_SAVE_TEMPS is set. |
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482 | |||
483 | If PEX_LAST is set, and OUTNAME is not NULL, standard |
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484 | output is written to the output file name. The file |
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485 | will not be removed. If PEX_LAST and PEX_SUFFIX are |
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486 | both set, TEMPBASE may not be NULL. |
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487 | |||
488 | ERRNAME If not NULL, this is the name of a file to which |
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489 | standard error is written. If NULL, standard error of |
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490 | the program is standard error of the caller. |
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491 | |||
492 | ERR On an error return, *ERR is set to an errno value, or |
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493 | to 0 if there is no relevant errno. |
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494 | */ |
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495 | |||
496 | extern const char *pex_run (struct pex_obj *obj, int flags, |
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497 | const char *executable, char * const *argv, |
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498 | const char *outname, const char *errname, |
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499 | int *err); |
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500 | |||
501 | /* As for pex_run (), but takes an extra parameter to enable the |
||
502 | environment for the child process to be specified. |
||
503 | |||
504 | ENV The environment for the child process, specified as |
||
505 | an array of character pointers. Each element of the |
||
506 | array should point to a string of the form VAR=VALUE, |
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507 | with the exception of the last element which must be |
||
508 | a null pointer. |
||
509 | */ |
||
510 | |||
511 | extern const char *pex_run_in_environment (struct pex_obj *obj, int flags, |
||
512 | const char *executable, |
||
513 | char * const *argv, |
||
514 | char * const *env, |
||
515 | const char *outname, |
||
516 | const char *errname, int *err); |
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517 | |||
518 | /* Return a stream for a temporary file to pass to the first program |
||
519 | in the pipeline as input. The file name is chosen as for pex_run. |
||
520 | pex_run closes the file automatically; don't close it yourself. */ |
||
521 | |||
522 | extern FILE *pex_input_file (struct pex_obj *obj, int flags, |
||
523 | const char *in_name); |
||
524 | |||
525 | /* Return a stream for a pipe connected to the standard input of the |
||
526 | first program in the pipeline. You must have passed |
||
527 | `PEX_USE_PIPES' to `pex_init'. Close the returned stream |
||
528 | yourself. */ |
||
529 | |||
530 | extern FILE *pex_input_pipe (struct pex_obj *obj, int binary); |
||
531 | |||
532 | /* Read the standard output of the last program to be executed. |
||
533 | pex_run can not be called after this. BINARY should be non-zero if |
||
534 | the file should be opened in binary mode; this is ignored on Unix. |
||
535 | Returns NULL on error. Don't call fclose on the returned FILE; it |
||
536 | will be closed by pex_free. */ |
||
537 | |||
538 | extern FILE *pex_read_output (struct pex_obj *, int binary); |
||
539 | |||
540 | /* Read the standard error of the last program to be executed. |
||
541 | pex_run can not be called after this. BINARY should be non-zero if |
||
542 | the file should be opened in binary mode; this is ignored on Unix. |
||
543 | Returns NULL on error. Don't call fclose on the returned FILE; it |
||
544 | will be closed by pex_free. */ |
||
545 | |||
546 | extern FILE *pex_read_err (struct pex_obj *, int binary); |
||
547 | |||
548 | /* Return exit status of all programs in VECTOR. COUNT indicates the |
||
549 | size of VECTOR. The status codes in the vector are in the order of |
||
550 | the calls to pex_run. Returns 0 on error, 1 on success. */ |
||
551 | |||
552 | extern int pex_get_status (struct pex_obj *, int count, int *vector); |
||
553 | |||
554 | /* Return times of all programs in VECTOR. COUNT indicates the size |
||
555 | of VECTOR. struct pex_time is really just struct timeval, but that |
||
556 | is not portable to all systems. Returns 0 on error, 1 on |
||
557 | success. */ |
||
558 | |||
559 | struct pex_time |
||
560 | { |
||
561 | unsigned long user_seconds; |
||
562 | unsigned long user_microseconds; |
||
563 | unsigned long system_seconds; |
||
564 | unsigned long system_microseconds; |
||
565 | }; |
||
566 | |||
567 | extern int pex_get_times (struct pex_obj *, int count, |
||
568 | struct pex_time *vector); |
||
569 | |||
570 | /* Clean up a pex_obj. If you have not called pex_get_times or |
||
571 | pex_get_status, this will try to kill the subprocesses. */ |
||
572 | |||
573 | extern void pex_free (struct pex_obj *); |
||
574 | |||
575 | /* Just execute one program. Return value is as for pex_run. |
||
576 | FLAGS Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT. |
||
577 | EXECUTABLE As for pex_run. |
||
578 | ARGV As for pex_run. |
||
579 | PNAME As for pex_init. |
||
580 | OUTNAME As for pex_run when PEX_LAST is set. |
||
581 | ERRNAME As for pex_run. |
||
582 | STATUS Set to exit status on success. |
||
583 | ERR As for pex_run. |
||
584 | */ |
||
585 | |||
586 | extern const char *pex_one (int flags, const char *executable, |
||
587 | char * const *argv, const char *pname, |
||
588 | const char *outname, const char *errname, |
||
589 | int *status, int *err); |
||
590 | |||
591 | /* pexecute and pwait are the old pexecute interface, still here for |
||
592 | backward compatibility. Don't use these for new code. Instead, |
||
593 | use pex_init/pex_run/pex_get_status/pex_free, or pex_one. */ |
||
594 | |||
595 | /* Definitions used by the pexecute routine. */ |
||
596 | |||
597 | #define PEXECUTE_FIRST 1 |
||
598 | #define PEXECUTE_LAST 2 |
||
599 | #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) |
||
600 | #define PEXECUTE_SEARCH 4 |
||
601 | #define PEXECUTE_VERBOSE 8 |
||
602 | |||
603 | /* Execute a program. */ |
||
604 | |||
605 | extern int pexecute (const char *, char * const *, const char *, |
||
606 | const char *, char **, char **, int); |
||
607 | |||
608 | /* Wait for pexecute to finish. */ |
||
609 | |||
610 | extern int pwait (int, int *, int); |
||
611 | |||
612 | #if !HAVE_DECL_ASPRINTF |
||
613 | /* Like sprintf but provides a pointer to malloc'd storage, which must |
||
614 | be freed by the caller. */ |
||
615 | |||
616 | extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2; |
||
617 | #endif |
||
618 | |||
619 | #if !HAVE_DECL_VASPRINTF |
||
620 | /* Like vsprintf but provides a pointer to malloc'd storage, which |
||
621 | must be freed by the caller. */ |
||
622 | |||
623 | extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0); |
||
624 | #endif |
||
625 | |||
626 | #if defined(HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF |
||
627 | /* Like sprintf but prints at most N characters. */ |
||
628 | extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3; |
||
629 | #endif |
||
630 | |||
631 | #if defined(HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF |
||
632 | /* Like vsprintf but prints at most N characters. */ |
||
633 | extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0); |
||
634 | #endif |
||
635 | |||
636 | #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP |
||
637 | /* Compare version strings. */ |
||
638 | extern int strverscmp (const char *, const char *); |
||
639 | #endif |
||
640 | |||
641 | /* Set the title of a process */ |
||
642 | extern void setproctitle (const char *name, ...); |
||
643 | |||
644 | /* Increase stack limit if possible. */ |
||
645 | extern void stack_limit_increase (unsigned long); |
||
646 | |||
647 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) |
||
648 | |||
649 | /* Drastically simplified alloca configurator. If we're using GCC, |
||
650 | we use __builtin_alloca; otherwise we use the C alloca. The C |
||
651 | alloca is always available. You can override GCC by defining |
||
652 | USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is |
||
653 | also set/unset as it is often used to indicate whether code needs |
||
654 | to call alloca(0). */ |
||
655 | extern void *C_alloca (size_t) ATTRIBUTE_MALLOC; |
||
656 | #undef alloca |
||
657 | #if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA |
||
658 | # define alloca(x) __builtin_alloca(x) |
||
659 | # undef C_ALLOCA |
||
660 | # define ASTRDUP(X) \ |
||
661 | (__extension__ ({ const char *const libiberty_optr = (X); \ |
||
662 | const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \ |
||
663 | char *const libiberty_nptr = (char *const) alloca (libiberty_len); \ |
||
664 | (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); })) |
||
665 | #else |
||
666 | # define alloca(x) C_alloca(x) |
||
667 | # undef USE_C_ALLOCA |
||
668 | # define USE_C_ALLOCA 1 |
||
669 | # undef C_ALLOCA |
||
670 | # define C_ALLOCA 1 |
||
671 | extern const char *libiberty_optr; |
||
672 | extern char *libiberty_nptr; |
||
673 | extern unsigned long libiberty_len; |
||
674 | # define ASTRDUP(X) \ |
||
675 | (libiberty_optr = (X), \ |
||
676 | libiberty_len = strlen (libiberty_optr) + 1, \ |
||
677 | libiberty_nptr = (char *) alloca (libiberty_len), \ |
||
678 | (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len)) |
||
679 | #endif |
||
680 | |||
681 | #ifdef __cplusplus |
||
682 | } |
||
683 | #endif |
||
684 | |||
685 | |||
686 | #endif /* ! defined (LIBIBERTY_H) */ |