53 lines
676 B
C
53 lines
676 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char *strdup();
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#ifdef ALT_PATH_SEP
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#define SEP ';'
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#else
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#define SEP ':'
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#endif
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char *path_search(char *name, char *mode, char *path)
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{
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FILE *f;
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static char *buf;
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char *p, *n;
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int l;
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if (buf) free(buf); buf = 0;
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if (!path || !*path || *name == '/')
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return (buf = strdup(name));
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buf = malloc(strlen(path) + strlen(name) + 2);
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for (p = path; *p; p += l)
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{
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if (*p == SEP) p++;
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n = strchr(p, SEP);
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if (n) l = n - p;
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else l = strlen(p);
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strncpy(buf, p, l);
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buf[l] = '/';
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strcpy(buf+l+1, name);
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if ((f = fopen(buf, mode)))
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{
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fclose(f);
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return buf;
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}
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}
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return name;
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}
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