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author | Jim Blandy <jimb@codesourcery.com> | 2004-09-22 18:49:07 +0000 |
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committer | Jim Blandy <jimb@codesourcery.com> | 2004-09-22 18:49:07 +0000 |
commit | c182e1c896482e9645589b7fe00637637f5fd8ee (patch) | |
tree | f36b5da2ab92cefdda813b59897bd952a9208272 /libiberty/tmpnam.c | |
parent | 148551e5315b1908ddedeb35c817900fd915675b (diff) | |
download | gdb-c182e1c896482e9645589b7fe00637637f5fd8ee.tar.gz |
* dwarf2loc.c (dwarf2_evaluate_loc_desc): Fix misapplied patch.
Diffstat (limited to 'libiberty/tmpnam.c')
-rw-r--r-- | libiberty/tmpnam.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libiberty/tmpnam.c b/libiberty/tmpnam.c new file mode 100644 index 00000000000..406878c49a3 --- /dev/null +++ b/libiberty/tmpnam.c @@ -0,0 +1,53 @@ +/* + +@deftypefn Supplemental char* tmpnam (char *@var{s}) + +This function attempts to create a name for a temporary file, which +will be a valid file name yet not exist when @code{tmpnam} checks for +it. @var{s} must point to a buffer of at least @code{L_tmpnam} bytes, +or be @code{NULL}. Use of this function creates a security risk, and it must +not be used in new projects. Use @code{mkstemp} instead. + +@end deftypefn + +*/ + +#include <stdio.h> + +#ifndef L_tmpnam +#define L_tmpnam 100 +#endif +#ifndef P_tmpdir +#define P_tmpdir "/usr/tmp" +#endif + +static char tmpnam_buffer[L_tmpnam]; +static int tmpnam_counter; + +extern int getpid (); + +char * +tmpnam (s) + char *s; +{ + int pid = getpid (); + + if (s == NULL) + s = tmpnam_buffer; + + /* Generate the filename and make sure that there isn't one called + it already. */ + + while (1) + { + FILE *f; + sprintf (s, "%s/%s%x.%x", P_tmpdir, "t", pid, tmpnam_counter); + f = fopen (s, "r"); + if (f == NULL) + break; + tmpnam_counter++; + fclose (f); + } + + return s; +} |