Author: ed Date: Wed May 25 08:45:03 2016 New Revision: 300669 URL: https://svnweb.freebsd.org/changeset/base/300669
Log: Make code compile when basename() is POSIX compliant. The POSIX basename() function is allowed to modify its input buffer, which means its argument is "char *". Pull a copy of the input string before computing the base. Reviewed by: jtl Differential Revision: https://reviews.freebsd.org/D6465 Modified: head/usr.sbin/pmcstat/pmcpl_gprof.c Modified: head/usr.sbin/pmcstat/pmcpl_gprof.c ============================================================================== --- head/usr.sbin/pmcstat/pmcpl_gprof.c Wed May 25 08:09:14 2016 (r300668) +++ head/usr.sbin/pmcstat/pmcpl_gprof.c Wed May 25 08:45:03 2016 (r300669) @@ -310,8 +310,9 @@ pmcstat_callgraph_do_gmon_arcs(void) void pmcpl_gmon_initimage(struct pmcstat_image *pi) { + const char *execpath; int count, nlen; - char *sn; + char *sn, *snbuf; char name[NAME_MAX]; /* @@ -321,9 +322,11 @@ pmcpl_gmon_initimage(struct pmcstat_imag * `basename(path)`+ "~" + NNN + ".gmon" till we get a free * entry. */ - if ((sn = basename(pmcstat_string_unintern(pi->pi_execpath))) == NULL) - err(EX_OSERR, "ERROR: Cannot process \"%s\"", - pmcstat_string_unintern(pi->pi_execpath)); + execpath = pmcstat_string_unintern(pi->pi_execpath); + if ((snbuf = strdup(execpath)) == NULL) + err(EX_OSERR, "ERROR: Cannot copy \"%s\"", execpath); + if ((sn = basename(snbuf)) == NULL) + err(EX_OSERR, "ERROR: Cannot process \"%s\"", execpath); nlen = strlen(sn); nlen = min(nlen, (int) (sizeof(name) - sizeof(".gmon"))); @@ -355,6 +358,7 @@ pmcpl_gmon_initimage(struct pmcstat_imag } } while (count > 0); } + free(snbuf); LIST_INIT(&pi->pi_gmlist); } _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
